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Programmatic Development using Apex and Visualforce in Lightning Experience Questions 181–185 (page: 38)

What is a valid statement about Apex classes and interfaces? Choose 2 answers:

A developer has the following trigger that fires after insert and creates a child Case whenever a new Case is created.
List<Case> childCases = new List<Case>();
for (Case parent : Trigger.new){
Case child = new Case (ParentId = parent.Id, Subject = parent.Subject);
childCases.add(child);}
insert childCases;

What happens after the code block executes?

When the number of record in a recordset is unknown, which control statement should a developer use to implement a set of code that executes for every record in the recordset, without performing a .size() or .length() method call?

What is the result when a Visualforce page calls an Apex controller, which calls another Apex class, which then results in hitting a governor limit?

A developer has the following code block:
public class PaymentTax {
public static decimal SalesTax = 0.0875;
} t
rigger OpportunityLineItemTrigger on OpportunityLineItem (before insert, before update) {

PaymentTax PayTax = new PaymentTax();decimal ProductTax = ProductCost * XXXXXXXXXXX;
}

To calculate the productTax, which code segment would a developer insert at the XXXXXXXXXXX to make the value the class variable SalesTax accessible within the trigger?